Vanner concentrating-belt.



R. DE LARGE.

VANNEB. GONGENTRATING BELT.

APPLICATION FILED 0018, 1912.

LSQySUQU, Patented Dec. 23, 1913.

`ROBERT DE LARGE, 0F RAY, ARIZONA.

VANNER CONCENTRATING-BELT.

Specification of Letters latent.

Patented Dec. 23, 1913.

Application led October 8, 1912. Serial 110,724,639.

To all rwhom t may concern Be it known that I, ROBERT D n LARGE, a citizen of the United States, residing at Ray,

in the county of Pinal and State of Arizona,

have invented new and useful Improvements in Vanner Concentrating-Belts, of which the following is a specification.

My invention relates to an improvement in apparatus for concentrating ores, and 1s particularly designed for concentrating and separating the heavy valuable particles of pulverized material from the light sand and slimes.

It consists in the employment of an endless, traveling concentrating belt, having a supplemental surface of wool felt, or cloth, rmly attached to the rubberbody of the belt.

It also comprises details of construction which will be more fully explained by reference to the accompanying drawing, in which- Figure l is a detail sectional view of the belt 1n perspective. Fig. 2 is a side elevation of the belt. 4

For the purpose of saving the valuable concentrates with ores, the ore is finely pulverized, and separation of, the material takes place in Avarious ways. A belt has been employed with a surface of bristles and surface of carpet having cut pile and also rubber or other fabric. found Vinsucient for the purpose of saving a sutiicient quantity of the concentrates and a very considerable portion has been lost.

In my` invention l employ a surface of telt 2, which is sucientl close, so that the water will not percolate t rough it; the surtace being substantially as smooth as that of a billiard table.. This felt surface 2 is mounted on a rubber bach 3.

lin operation, the mixed material is de- These various fabrics are livered upon the belt which has a' sutlicient incline, so that the'material mixed with a suiicient quantity of water will tend to flow down toward the lower end of the belt while the belt is continuously traveling upwardly. The flow is suiicient to separate out the lighter slimes and sand, which are eventually discharged at the lower end, while the liner and heavier concentrates will be held by the fine surface ofthe :telt which prevents the heavier particles from escaping by holding them in place until dense enough. As the ybelt moves onward and upward toward the head of the machine,these concentrates are finally washed oii' by the usual box into which the belt dips vas it passes around the underside of the upper roller.

The separation of the material is made principally behind or on the down side of the feed where the water is less agitated by the gentle shake'of the machine, thus permitting the ne concentrate to lodge and settle in the surface of the felt and then to be carried onward and upward; the ne felt holdin it in place.

Havmg thus described my invention, what I claim and desire to secure by Letters Patent is- A concentrator belt comprising an inner surface ci rubber belting, and an outer surface of fine smooth'felt composed of fine, matted, curled fibers, said felt being of Aa density sufficient to prevent percolation of water through the same.

ln testimony whereofli have hereunto set my hand in the presence of two subscribing witnesses.

RBERT DE LARGE..

Witnesses;

J. H. Serien, Unna. W. 

